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Finding the Fourth Proportional to 69,978,662.40, 104,960,906.16 and 18,865,848

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Solution

The fourth proportional to 69,978,662.40, 104,960,906.16 and 18,865,848 is: 28,296,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,978,662.40 : 104,960,906.16 = 18,865,848 : x
  2. Step 2: Convert to fraction form
    69,978,662.40/104,960,906.16 = 18,865,848/x
  3. Step 3: Cross multiply
    69,978,662.40x = 104,960,906.16 × 18,865,848
  4. Step 4: Simplify right side
    69,978,662.40x = 1,980,176,501,556,823.50
  5. Step 5: Solve for x
    x = 1,980,176,501,556,823.50/69,978,662.40
  6. Step 6: Final answer
    x = 28,296,861.27

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